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How will you change the default output of JSON.stringify for any object.

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    Why would you want to do this? Commented Mar 30, 2015 at 12:44

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You can provide a "replacer" function with special logic for your object type. Check out the docs here: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/JSON/stringify#The_replacer_parameter

An example from their docs:

function replacer(key, value) {
  if (typeof value === "string") {
    return undefined;
  }
  return value;
}

var foo = {foundation: "Mozilla", model: "box", week: 45, transport: "car", month: 7};
var jsonString = JSON.stringify(foo, replacer);
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